LPWA Module Series
BG950A-GL&BG951A-GL_Hardware_Design
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3.6. Power Supply
3.6.1. Power Supply Pins
The module provides two VBAT pins dedicated to the connection with the external power supply.
One VBAT_RF pin for RF part.
One VBAT_BB pin for baseband part.
Table 8: Pin Definition of Power Supply
3.6.2. Power Supply Monitoring
AT+CBC
*
can monitor the VBAT_BB voltage value. For more details, see
document [3].
3.6.3. Requirements for Voltage Stability
The power supply range of the module is from 2.2 V to 4.5 V. Make sure the input voltage will never drop
below 2.2 V.
Pin Name Pin No. Description
Min.
Typ.
Max.
Unit
VBAT_BB
32
Power supply for the module’s
baseband part
2.2
3.3
4.5
V
VBAT_RF
33
Power supply for the module’s RF part
2.2
3.3
4.5
V
GND
3, 31, 48, 50, 54, 55, 58, 59, 61, 62, 67–74, 79–82,
89–91, 100–102
-
-
-
-
For every VBAT transition/re-insertion from 0 V, VBAT slew rate < 25 mV/μs. After the module starts up
normally, in order to ensure full-function mode, the minimum power supply voltage should be higher
than 2.2 V.
NOTE
